V7 Print Bed Upgrade Kit

I received the replacement V7 bed (to replace the warped one I first received). This one is flat, and now, for the first time since I bought this 3D Touch (about a year ago), I have a flat and level bed. Prints in PLA are coming out perfectly, but I am NOT printing on the bare bed surface. I refuse to do that because I have seen what scraping and prying parts off the surface does to it. My original print bed (not a V7, but the composite bed) warped and cracked. Instead of directly printing to the surface I am using blue painter's tape (apply tape, put a little isopropyl alcohol on a terry cloth rag and wipe the tape surface lightly -- I don't know why, but it tends to stick better if wiped with alcohol), and I have not even the slightest scratch on this new bed. My attempts to print ABS on blue tape have all failed miserably, but if I use a PLA raft on blue tape the ABS prints are possible as long as they aren't big enough to warp for lack of a heated print bed. I am happier now, but still wish I could print larger ABS parts. The general concensus seems to be that this requires a heated bed.

I received the new V7 print bed and installed and leveled it in my 3D Touch. The Y axis is straight, but the X axis is bowed making the center of the bed .381mm higher than the left and right sides near the edges (as close as I could get to the edges with the dial indicator clamped onto the carriage -- I also double checked using feeler gauges). I have submitted a ticket to initiate the exchange procedure for a replacement because the new bed is supposed to be flat. This one isn't.

If I get a good replacement from BFB I'll come back and leave a more joyfull comment here, but until then the score is two negative reviews to zero positive reviews, and that is sad.